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. 2019 Jan 31;32(2):206–210. doi: 10.1007/s10278-019-00186-3

Fig. 2.

Fig. 2

“Indirect” causal relations as defined in this study are based on up to two causal relations and zero or more subclass (is_a) relations in RGO. For example, as shown graphically, actinomycosis may cause esophagobronchial fistula, which is an esophageal fistula, which may cause pneumomediastinum